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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 04:00 +10GMT Sun 06 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 106687
Prefixes after maximum aggregation: 71405
Unique aggregates announced to Internet: 52054
Total ASes present in the Internet Routing Table: 12282
Origin-only ASes present in the Internet Routing Table: 10674
Origin ASes announcing only one prefix: 4622
Transit ASes present in the Internet Routing Table: 1608
Transit-only ASes present in the Internet Routing Table: 50
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 13
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1159174664
Equivalent to 69 /8s, 23 /16s and 154 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71482
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16553
Total APNIC prefixes after maximum aggregation: 10374
Prefixes being announced from the APNIC address blocks: 15184
Unique aggregates announced from the APNIC address blocks: 9755
APNIC Region origin ASes present in the Internet Routing Table: 1415
APNIC Region origin ASes announcing only one prefix: 456
APNIC Region transit ASes present in the Internet Routing Table: 243
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78221504
Equivalent to 4 /8s, 169 /16s and 144 /24s
Percentage of available APNIC address space announced: 57.8
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72247
Total ARIN prefixes after maximum aggregation: 47124
Prefixes being announced from the ARIN address blocks: 51962
Unique aggregates announced from the ARIN address blocks: 16986
ARIN Region origin ASes present in the Internet Routing Table: 7279
ARIN Region origin ASes announcing only one prefix: 2259
ARIN Region transit ASes present in the Internet Routing Table: 723
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 182052040
Equivalent to 10 /8s, 217 /16s and 228 /24s
Percentage of available ARIN address space announced: 67.8
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 17876
Total RIPE prefixes after maximum aggregation: 13907
Prefixes being announced from the RIPE address blocks: 14589
Unique aggregates announced from the RIPE address blocks: 9738
RIPE Region origin ASes present in the Internet Routing Table: 3539
RIPE Region origin ASes announcing only one prefix: 1907
RIPE Region transit ASes present in the Internet Routing Table: 634
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105299200
Equivalent to 6 /8s, 70 /16s and 189 /24s
Percentage of available RIPE address space announced: 69.7
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1343 1259 985 Telstra Pty Ltd
703 401 347 308 UUNET Technologies, Inc.
2764 399 378 373 connect.com.au pty ltd
2907 390 1891 360 SINET Japan
7474 310 285 202 Optus Communications Pty Ltd
4755 297 99 80 Videsh Sanchar Nigam Ltd. Aut
4134 268 1874 98 Data Communications Bureau
4766 189 1396 139 Korea Internet Exchange for "
17557 176 14 85 Pakistan Telecom
9443 173 45 69 Primus Telecommunications
1659 165 924 34 Taiwan Academic Network (TANe
9583 157 32 5 Satyam Infoway Ltd.,
4740 149 34 123 OzEmail ISP
9768 145 381 88 Korea Telecom
4812 143 288 36 China Telecom (Group) - Shang
7657 126 22 85 The Internet Group Limited
17676 121 1920 7 XTAGE CORPORATION
4780 117 186 40 Digital United Inc.
4713 115 894 102 NTT Communications Corporatio
9800 112 194 21 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1090 2653 857 UUNET Technologies, Inc.
3301 401 925 353 TeliaNet Sweden
1257 253 489 250 SWIPnet Swedish IP Network
680 233 2149 231 DFN-IP service G-WiN
3215 232 562 151 France Telecom / &Equant
5515 216 705 176 Sonera Finland Autonomous Sys
3320 202 1961 170 Deutsche Telekom AG
786 181 1858 181 The JANET IP Service
719 164 289 118 LANLINK autonomous system
5400 148 60 85 Concert European Core Network
8708 146 20 138 Romania Data Systems S.A.
5549 141 78 63 Nextra Deutschland GmbH + Co.
2856 136 777 125 BTnet UK Regional network
3303 134 575 124 Swisscom Ltd
3269 115 663 70 TELECOM ITALIA
12302 111 7 35 MobiFon S.A.
517 108 230 106 KPNQwest Germany GmbH
8297 108 31 62 Teleglobe Autonomous System i
1290 97 412 72 PSINet UK Ltd.
5511 95 192 79 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2138 8789 1531 UUNET Technologies, Inc.
7018 1131 7428 879 AT&T
1 872 8408 645 BBN Planet
3967 849 359 393 Exodus Communication
3908 775 1638 475 Supernet, Inc.
1239 774 3181 601 Sprint
8010 714 62 11 PublicNet Communications, Inc
7046 687 822 439 UUNET Technologies, Inc.
4323 587 380 202 Time Warner Communications, I
852 580 978 384 Telus Advanced Communications
690 533 76 318 Merit Network
209 512 1861 296 Qwest
705 473 349 294 UUNET Technologies, Inc.
2914 459 2210 430 Verio, Inc.
7132 402 470 168 Southwestern Bell Internet Se
3549 401 835 200 Global Crossing
2149 396 230 332 Performance Systems, Inc.
3561 378 2253 328 Cable & Wireless USA
4151 363 704 16 USDA
577 352 588 220 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN Net Savings Description
8010 703 PublicNet Communications, Inc
3967 456 Exodus Communication
4323 385 Time Warner Communications, I
1221 358 Telstra Pty Ltd
4151 347 USDA
3908 300 Supernet, Inc.
11371 271 Rhythms NetConnections
7018 252 AT&T
7046 248 UUNET Technologies, Inc.
7132 234 Southwestern Bell Internet Se
702 233 UUNET Technologies, Inc.
6347 233 SAVVIS Communications Corpora
1 227 BBN Planet
4755 217 Videsh Sanchar Nigam Ltd. Aut
209 216 Qwest
690 215 Merit Network
3549 201 Global Crossing
4355 199 EarthLink, Inc.
852 196 Telus Advanced Communications
7843 189 Adelphia Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
65021 PRIVATE 203.75.135.0/27 3462 Data Communication B
65022 PRIVATE 203.75.135.32/27 3462 Data Communication B
65021 PRIVATE 203.75.210.129/32 3462 Data Communication B
65021 PRIVATE 203.75.210.130/32 3462 Data Communication B
65021 PRIVATE 203.75.210.131/32 3462 Data Communication B
65021 PRIVATE 203.75.210.132/32 3462 Data Communication B
65022 PRIVATE 203.75.210.137/32 3462 Data Communication B
65022 PRIVATE 203.75.210.138/32 3462 Data Communication B
65021 PRIVATE 203.75.232.0/27 3462 Data Communication B
65022 PRIVATE 203.75.232.32/27 3462 Data Communication B
65021 PRIVATE 203.75.232.160/27 3462 Data Communication B
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 400 Headquarters Standard Systems
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.34.0.0/15 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
191.9.200.0/24 1290 PSINet UK Ltd.
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:6 /10:7 /11:12 /12:38
/13:92 /14:231 /15:392 /16:7054 /17:1367 /18:2470
/19:7184 /20:6307 /21:4735 /22:7129 /23:8840 /24:59950
/25:225 /26:225 /27:138 /28:90 /29:77 /30:72
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1365 2138 UUNET Technologies, Inc.
1221 1197 1343 Telstra Pty Ltd
702 708 1090 UUNET Technologies, Inc.
8010 698 714 PublicNet Communications, Inc
3967 666 849 Exodus Communication
7018 593 1131 AT&T
3908 533 775 Supernet, Inc.
690 530 533 Merit Network
7046 521 687 UUNET Technologies, Inc.
4323 496 587 Time Warner Communications, I
1 454 872 BBN Planet
1239 451 774 Sprint
852 369 580 Telus Advanced Communications
705 356 473 UUNET Technologies, Inc.
2764 353 399 connect.com.au pty ltd
209 338 512 Qwest
703 326 401 UUNET Technologies, Inc.
4151 316 363 USDA
2149 298 396 Performance Systems, Inc.
7474 275 310 Optus Communications Pty Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:445 13:10 15:2 17:5
20:1 24:777 25:1 32:73 38:13 40:4
43:1 44:2 52:1 53:2 57:13 61:209
62:162 63:1897 64:1485 65:971 66:754 67:21
68:13 80:144 128:62 129:111 130:24 131:41
132:14 133:2 134:107 135:10 136:46 137:103
138:62 139:30 140:102 141:57 142:53 143:43
144:57 145:12 146:200 147:94 148:153 149:88
150:39 151:37 152:379 153:34 154:6 155:82
156:82 157:119 158:71 159:78 160:26 161:54
162:85 163:120 164:119 165:103 166:204 167:160
168:114 169:47 170:280 171:2 191:1 192:5326
193:2054 194:2059 195:853 196:430 198:3693 199:3308
200:2409 201:1 202:2847 203:4483 204:3261 205:2180
206:2587 207:2650 208:2604 209:2969 210:536 211:152
212:881 213:553 214:9 215:17 216:2945 217:408
218:12
End of report
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